Explore topic-wise MCQs in Ic Engine.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.

1.

A pre-combustion chamber gives a shorter delay compared to an open type of combustion chamber.

A. True
B. False
Answer» B. False
2.

The ____________ rate is due to the physical movement of the flame front relative to the cylinder wall and also the result of the pressure differential between the burning gases and the unburnt gases in the combustion chamber.

A. transposition
B. reaction
C. burning
D. none of the mentioned
Answer» B. reaction
3.

The ____________ rate is the result of a purely chemical combination process in which the flame eats it way into the unburned charge.

A. transposition
B. reaction
C. burning
D. none of the mentioned
Answer» C. burning
4.

THE______________RATE_IS_DUE_TO_THE_PHYSICAL_MOVEMENT_OF_THE_FLAME_FRONT_RELATIVE_TO_THE_CYLINDER_WALL_AND_ALSO_THE_RESULT_OF_THE_PRESSURE_DIFFERENTIAL_BETWEEN_THE_BURNING_GASES_AND_THE_UNBURNT_GASES_IN_THE_COMBUSTION_CHAMBER.?$

A. transposition
B. reaction
C. burning
D. none of the mentioned
Answer» B. reaction
5.

A pre-combustion chamber gives shorter delay compared to an open type of combustion chamber.$

A. True
B. False
Answer» B. False
6.

The ____________ rate is the result of a purely chemical combination process in which the flame eats it way into the unburned charge?

A. transposition
B. reaction
C. burning
D. none of the mentioned
Answer» C. burning
7.

The complete combustion of ____________ mixture, and droplet combustion result in the smoke and odour.

A. heterogeneous
B. homogeneous
C. solid
D. none of the mentioned
Answer» C. solid
8.

In a homogeneous gas mixture the fuel and oxygen molecules are more or less, uniformly distributed.

A. True
B. False
Answer» B. False
9.

Homogeneous mixture is formed inside the engine cylinder and the combustion is initiated inside the cylinder at a particular instant towards the end of the compression stroke.

A. True
B. False
Answer» C.
10.

In spark ignition engines a nearly ____________ mixture of air and fuel is formed in the carburettor.

A. heterogeneous
B. homogeneous
C. solid
D. none of the mentioned
Answer» C. solid
11.

The process of combustion in engines generally takes place either in a homogeneous or a heterogeneous fuel vapour air mixture depending on the type of engine.

A. True
B. False
Answer» B. False
12.

The conditions necessary for combustion are the presence of combustible mixture and some means of initiating the process.

A. True
B. False
Answer» B. False
13.

____________ is a chemical reaction in which certain elements of the fuel like hydrogen and carbon combine with oxygen liberating heat energy and causing an increase in temperature of the gases.

A. Compression
B. Expansion
C. Combustion
D. None of the mentioned
Answer» D. None of the mentioned